Finding the Fourth Proportional to 756,342,380.52, 1,043,752,488.42 and 408,661,868.52

Step by Step Solution

1. Step 1: Write the proportion equation
   756,342,380.52 : 1,043,752,488.42 = 408,661,868.52 : x
2. Step 2: Convert to fraction form
   756,342,380.52/1,043,752,488.42 = 408,661,868.52/x
3. Step 3: Cross multiply
   756,342,380.52x = 1,043,752,488.42 × 408,661,868.52
4. Step 4: Simplify right side
   756,342,380.52x = 426,541,842,190,116,800
5. Step 5: Solve for x
   x = 426,541,842,190,116,800/756,342,380.52
6. Step 6: Final answer
   x = 563,953,380.34